CVE-2026-2905 HIGH

CVE-2026-2905: Tenda HG9 Wireless Configuration Endpoint formWlanSetup stack-based overflow

Vendor Tenda
Product HG9
Weakness CWE-121
Published February 22, 2026
Last update February 23, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A vulnerability was identified in Tenda HG9 300001138. This impacts an unknown function of the file /boaform/formWlanSetup of the component Wireless Configuration Endpoint. The manipulation of the argument ssid leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit is publicly available and might be used.

Key dates

02Disclosure timeline

February 22, 2026 CVE published
February 23, 2026 Record updated